ghost in my car

[MatthewP]

hey guys, iv started to notice that when i creep up to a red light with foot on the clutch and one on the brake my revs seem to increase, not alot about 1200 rpm then will drop to 1000 then back to aound 1200 then drop and idle at about 850 this all happens in around 5 secs or so. Any Ideas?

[VZ_commo91]

Don't they normally call that 'Hunting' ? Could be o2 sensors ? maybe your MAF.. not really sure...

[azza221]

I get that somtimes when in traffic. When I take off in first and have to dab in the clutch quickly because the traffic stops...after i dab it in, the revs jump momentarily to 1200 for a second or two. Basically only happens in that scenario...

[klampy]

if your idling up to the lights in gear and then put the clutch in the revs will rise briefly due to the IAC valve trying to keep the engine from stalling, once they rise, it rethinks what it was doing and should normally drop back to normal first go, but can sometimes drop too far and then it opens right up and surges again.

try running some caby cleaner thru the TB. specifically the IAC valve to clean any carbon out of it. might help... maybe.